Flux, English name: flux, generally refers to a substance that can reduce the softening, melting or liquefaction temperature of its substance. In metallurgy, its main function is to combine with impurities in minerals to form slag and separate from metals to achieve the purpose of smelting or refining. According to chemical properties, it can be divided into: (1) Alkaline flux with calcium oxide and magnesium oxide as the main components; (2) Acidic flux with silica as the main component; (3) Fluorite, oxide Aluminum is the central flux of the main component.
